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ISO 10349-5:1992

Photography — Photographic-grade chemicals — Test methods — Part 5: Determination of heavy metals and iron content

Dec 30, 1992

General information

90.93     Jun 5, 2023

ISO

ISO/TC 42

International Standard

37.040.30  

English  

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Scope

The method is based on preparation of test samples and heavy metals standard solutions, preconditioning them, addition of sodium sulfide solution (for determination of heavy metals) or 1,10-phenanthroline reagent (for determination of iron), dilution with water, mixing well, transfer to two Nessler colour-comparison cylinders, and comparing the colour of both solutions.

Life cycle

NOW

PUBLISHED
ISO 10349-5:1992
90.93 Standard confirmed
Jun 5, 2023